Wysuwane okienko :hover + js animate

<div id="container">
<div id="social-main"></div>
<div id="social-hover"></div>
</div>


$('body').on('mouseenter','#social-hover',function(){
    $('#social-hover').animate({
        left: '150px'
    },250);
    $('#social-main').animate({
        left: '0px'
    },250);
});



$('body').on('mouseleave','#container',function(){
    $('#social-hover').animate({
        left: '0px'
    },250);
    $('#social-main').animate({
        left: '-150px'
    },250);
});


#social-main{
    position: fixed;
    top: 150px;
    left: -150px;
    width: 150px;
    height: 100px;
    background: #000;
    z-index: 100;
}
#social-hover{
    position: fixed;
    top: 150px;
    left: 0px;
    width: 50px;
    height: 50px;
    background: red;
    z-index: 100;
}












----------------------------------------------------


<div id="panel">Tutaj dowolna treść</div>


#panel {
    box-sizing: border-box;
    width: 200px; /* szerokość panelu */
    height: 300px;
    position: fixed;
    top: 100px;
    background-color: yellow;
    border: 5px solid blue;
    left: -200px; /* to samo co szerokość, ale z minusem */
    transition: left 0.4s ease-out;
}

#panel:after {
    content: url('http://lorempixel.com/output/abstract-q-c-30-30-6.jpg'); /* obrazek "uchwytu" */
    position: absolute;
    right: -35px; /* tym ustawiasz pozycję "uchwytu" */
    top: -5px;
    cursor: pointer;
}

#panel:hover {
    left: 0;
}